bennett wallace



(No Model.)

J. B. WALLACE.

PLUMBBRS HEATER No. 819,868. Patented June 9, 1885.

'UNTTEE STATES v 'PATENT Errori..

J. BENNETT VALLACE, OF CHICAGO, ILLINOIS, ASSIGNOR 'IO THE MYERS lMANUFACTURING COMPANY, OF SAME PLACE.

PLUMBERS HEATER.

SPECIFICATION forming part of Letters Patent No. 319,868, dated June 9, 1885.

Application filed June 9, 1884. (No model.)

T all whom t may concern:

Be it known that I, J. BENNETT WALLACE, of Chicago,in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Plumbers Heaters; and I do hereby declare that the following is a full, clear, and eXact description thereof, reference being had to the accompanying drawings,and to the letters of reference marked thereon,

1C which form a part of this specification.

This invention relates to portable furnaces of a class used by tinners and plumbers, and concerns the structure both of the reservoir and of the burner.

I 5 The invention consists in the matters hereinafter set forth, and pointed out in the appended claims.

t In the drawings, Figure 1 is a central Vertical section ofthe entire structure in the plane of t-he line x m of Fig. 2. Fig. 2 is a top or plan view of the burner, and of the ring located at the top of the burner for the support of the article to be heated. Figs. 3 and 4t are detail views.

`A is the reservoir as a whole; B, the burner, and C a ring or annular frame supported at the top of the burner, for the purpose of sustaining either directly or indirectly the article to be heated.

The reservoir A consists of the cylindric or conical side rim, A', and bottom a4, joined by a marginal seam and solder, or otherwise, as may be desired. Said reservoir also embraces the top A2, which is of cast-iron and fitted to 5 5 the top of the rim A', usually by means of an annular groove receiving the upper edge of the rim A, as shown in Fig. l; but, if desired, one wall of the groove may be absent, leaving either an inner or an outer flange adapted to t within or over the edge of said rim A. A

tight joint is provided at the juncture of the top plate, A2, with the rim A by means of solder.

For the purpose of giving additional strength to the reservoir, particularly when therim A and bottom a4 are of sheet metal, I prefer the construction further shown in saidFig. 1. In the said construction just referred to, A3 is a anged interiorly-threaded nut applied to a 5o central aperture in the bottom a2, and A4 is a tube or rod threaded into said nut A3 and into a central hub or boss in the top plate, A2. In this said construction, also, a marginal rim, a6,

of cast-iron, is employed, which surrounds the lower marginal angle of the reservoir, and which is preferably connected with the nut A3 by radial arms a5. A body of solder applied around the nut A3, as indicated in heavy black in Fig. 1, serves to make a closejoint between the aperture in the bottom c4 and said 60 nut, and generally I prefer to apply solder around the margin of the bottom a* at its j unction with the rim af".

The reservoir is provided with an inlet-tube, ct, cast in the top plate, A2, and interiorly 6 5 threaded in a familiar manner to receive the close iitting screw stopper a. In said top plate, A2, is also set a tube, a2, provided with a stop-cock, a3, through which air may be injected for the purpose of applying pressure to 7o the liquid without the reservoir, in orderl to force the same to the burner.

The burner B is contrived with a special view to obtaining a greater generating efficiency; and to this end it is provided with the passage or tube B2, extending centrally across the interior of the open vapor-tube B8, and is otherwise constructed as will be further eX- plained. Said burner is made, as here shown, in a single cast-ing, in which the passages are 8o formed preferably by drilling. It has the primary induction liquid-tube B connected with the top plate, A2, of the reservoir, either directly'or by means of the coupling b,and prolonged within 'said reservoir by the eXtension- 8 5 tube b', leading nearlyto the bottom of the latter. The passage of the vertical tube B is continued horizontally around the head B2 in the direction indicated by the arrows in Fig.- 2. Said passage within the head B2 extends 9o entirely around the central opening or vaporinduction passage of the burner to a point op- 'posite the passage B', at which point it de scends a short distance, as shown in Fig. l, and then takes the horizontal course through the tube B7 to the opposite side of the burner, whence it is prolonged in the vertical tube B3 and lateral projection B4 thereof to the central head. B5, which contains the needle-valve b2.

Said'needle-valve is arranged in the axis of the mo open vapor-tube B8 in the usual manner, and is preferably threaded into the head B5 by a high-pitched thread, as shown, so that the desired opening of said valve may be eifected by only a partial rotation thereof. To turn the valve, the lower end of its shaft is provided with a laterally-projecting lever, b3, adjustably secured by a set-screw.. The shaft of the valve is packed by a cap, b, surrounding the same and threaded upon the lower end of the head B5. A drip-cup, b5, of the ordinary construction, is secured on said head bythe packing cap-nut b4. Y

Just below the head B2 the vapor-tube B8 is provided with opposite horizont-al slots, be, which allow a portion of the vapor from the needle-valve to escape and to pass upward externally to the head. This portion of the va- A por ignites at the slots b, or without the tube Bwhile that portion of said vapor which rises through the central opening of the head ignites in said opening or' within the said tube B8. Asa result, flames are made to more perfectly embrace the passages leading from the liquid-induction tube B to the needle-valve than heretofore; or, in other words, a greater extent of external surface of these passages is exposed to the dames with the effect of materially increasing the generating capacity of the burner.

The tube B7, traversing the passage of the vapor-tube B8, not only serves the purpose set forth and resulting from its forming part of the generating or interior vapor-passage of the burner, but it has also the useful effect of so retarding the movement of the vapor through the open tube BS, and thereby prevents the flame from being extinguished or from self-extinguishment when the pot or article being heated is removed from the burner. This latter effect will of course be equally accomplished if the traversing part is a mere bar, or if it is not a tube or a part of ihe interior vapor-passage.

B6 is a large tube, which embraces the entire burner and extends from a point sufficiently high at the bottom to freely admit air to the level or a little above the level of the burner-top. The presence of this tube serves to produce air-currents, which concentrate the exterior and interior flames of the burner above the burner-top, causing them to still more perfectly embrace the interior passages of said burner and giving asingle flame above the burner in form for effective working purposes.

The tube or shield B6 may be supported in any suitable manner, either from the top plate of the reservoir, from the burner, or from the ring C. The last mentioned is the construction herein shown, three inwardlydirected arms, C2, being cast on said ring, upon the inner and rivet-formed ends of which projections 117 on the tube B6 are secured.

The ring or frame C is upheld in suitable position by rods or standards C', screwed into the reservoir top plate, A2, and connected with inwardly-projecting lugs c on said ring. The utensil to Y be heated is placed on said ring. When heatinga pot, a cage or shield, C3, is def sirably employed to prevent deflection of the flame by the wind. This shield is movably attached to the ring by pins c', xed in the ring, and notched projections c2 on the shield, forming, essentially, what is known as a bayonet-connection and opera-ted in a familiar manner.

A bail, G, pivoted to the ring C, serves for transporting the implement from place to place. l

I am aware that a hydrocarbon-burner has heretofore been constructed with a circular plate or casting provided with au interior vaporizing or generating chamber,and located centrally at the upper end of a vapor passage or chamber, so as to form with said chamber an annular outlet for the llame, and I do not, therefore, claim, broadly, agenerating chamber or passage located within avapor-tube; but my invention, as it relates to the device referred to, is restricted to a construction embracing a vapor-tube open at both ends, and provided with a transverse bar adapted to retard the passage of vapor through the tube, as set forth in the appended claims.

I claim as my invention- 1. The combination, with the cast-iron top plate, A2, and sheet-metal sides and bottom of the reservoir, of a nut, A3, and rim a, connected by arms a5 with said nut, and a counecting rod or tube, A, substantially as described.

2. The combination4 of the centrally-open burner-head provided with an interior passage extending around the opening of said head, the open vapor-tube, the liquid-induction tube leading into the passage within the head, the transverse tube leading from said passage across the open vapor-tube, and a passage leading from said cross-tube to the needle-valve, substantially as described.

3. The combination of the centrally-open burner-head provided with an interior passage extending around said opening, the open vapor-tube provided with slot-s below the head, the needle-valve, the liquid induction tube leading into the passage within the head, the transverse tube leading from said passage across the open vapor-tube, and a passage leading from said cross-tube to the needle-valve, substantially as described.

4. The combination,with the burner B, having an open vapor-tube, BB, provided with lat- IOO IIC

eral openings b, of a'shield surrounding the burner, substantially as and for the purposes set forth.

In testimony that I claim the foregoingasmy invention I aflix my signature lin presence of two witnesses.

J. BENNETT WALLACE. Witnesses:

C. CLARENCE POOLE, OLIVER E. PAGIN, 

